debian-mirror-gitlab/lib/gitlab/config/entry/factory.rb
2021-01-03 14:25:43 +05:30

92 lines
2 KiB
Ruby

# frozen_string_literal: true
module Gitlab
module Config
module Entry
##
# Factory class responsible for fabricating entry objects.
#
class Factory
InvalidFactory = Class.new(StandardError)
attr_reader :entry_class
def initialize(entry_class)
@entry_class = entry_class
@metadata = {}
@attributes = { default: entry_class.default }
end
def value(value)
@value = value
self
end
def metadata(metadata)
@metadata.merge!(metadata.compact)
self
end
def with(attributes)
@attributes.merge!(attributes.compact)
self
end
def description
@attributes[:description]
end
def inherit
@attributes[:inherit]
end
def inheritable?
@attributes[:inherit]
end
def reserved?
@attributes[:reserved]
end
def create!
raise InvalidFactory unless defined?(@value)
##
# We assume that unspecified entry is undefined.
# See issue #18775.
#
if @value.nil?
Entry::Unspecified.new(fabricate_unspecified)
else
fabricate(entry_class, @value)
end
end
private
def fabricate_unspecified
##
# If entry has a default value we fabricate concrete node
# with default value.
#
default = @attributes.fetch(:default)
if default.nil?
fabricate(Entry::Undefined)
else
fabricate(entry_class, default)
end
end
def fabricate(entry_class, value = nil)
entry_class.new(value, **@metadata) do |node|
node.key = @attributes[:key]
node.parent = @attributes[:parent]
node.default = @attributes[:default]
node.description = @attributes[:description]
end
end
end
end
end
end